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Unformatted text preview: chromosome 17 and blocks the transcription of gene B. Which of the following describes how gene A acts on gene B? a. trans b. cis c. positive control d. both a and c e. both b and c 20. Which of the following is a post-transcriptional regulatory process? a. differential splicing b. protein turnover c. cis dominance d. both a and b e. both b and c 21. Which of the following techniques can be used to isolate large amounts of a specific region of a DNA molecule? a. cloning b. sequencing c. PCR d. Northern blot e. Both a and c 22. Which of the following describe the action of genetic drift in a large population? a. causes wide fluctuations in allele frequencies each generation b. the time to fixation of a neutral allele will take a longer time in a large population c. causes small fluctuations in allele frequencies each generation d. both a and b e. both b and c...
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- Fall '10